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Plasma α‐L‐fucosidase‐1 in patients with Sjögren's syndrome and other rheumatic disorders
Author(s) -
Endreffy Ildikó,
Bjørklund Geir,
Bartha Attila,
Chirumbolo Salvatore,
Dadar Maryam,
Fényi Ágnes
Publication year - 2019
Publication title -
international journal of rheumatic diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 41
eISSN - 1756-185X
pISSN - 1756-1841
DOI - 10.1111/1756-185x.13639
Subject(s) - medicine , gastroenterology , diabetes mellitus , differential diagnosis , endocrinology , pathology
Background Human α‐fucosidase (EC 3.2.1.51) is a hydrolase the importance of which has been increasing in the latest years. However, data about its plasma level in children with autoimmune disorders, particularly Sjögren's syndrome (SS), are lacking. In this study, the plasma activity of L‐α‐fucosidase‐1 (α‐L‐FUCA‐1) was assayed in hospitalized children and adults and its association with SS and other rheumatic disorders further evaluated. Methods In total 73 Hungarian hospitalized patients, 32 children (2.5‐10 years) and 41 adults (32‐68 years), were enrolled in the study and underwent plasma assay of α‐L‐FUCA1 activity. Linear regression, Durbin‐Watson (DW), and Pearson tests were evaluated to investigate the relationship between α‐L‐FUCA‐1 plasma levels and autoimmune manifestations. Results α‐L‐FUCA‐1 correlated with SS both in children (2‐sided t test, P = 0.0023) and in adults (2‐sided t test, P = 0.00035). Linear regressions showed that in other rheumatic disorders, α‐L‐FUCA1 did not show any differential distribution related to the particular pathology ( r = 0.2042, P = 0.1531, DW test = 2.2139 positive), while this trend was radically opposite for patients with SS ( r = 0.1462, P = 0.0032, DW test = 1.3664, negative). Conclusions Alterations in plasma level of α‐L‐FUCA‐1 were significantly associated with SS. This preliminary result should encourage further research on α‐L‐FUCA‐1 as a possible differential serological marker of SS.